SOLUTION: This says solve by the substitution method
5x+9y=-11
-5x+y=21
it says the solution is an ordered pair, I get substitution mixed up with elimination can someone expain how to get
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-> SOLUTION: This says solve by the substitution method
5x+9y=-11
-5x+y=21
it says the solution is an ordered pair, I get substitution mixed up with elimination can someone expain how to get
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Question 248214: This says solve by the substitution method
5x+9y=-11
-5x+y=21
it says the solution is an ordered pair, I get substitution mixed up with elimination can someone expain how to get this solution by the substitution method? Thanks so much Answer by scott8148(6628) (Show Source):
You can put this solution on YOUR website! substitute the value of a quantity from one equation for the same quantity in another equation
5x = -11 - 9y ___ -5x = 11 + 9y
substituting ___ 11 + 9y + y = 21 ___ 10y = 10 ___ y = 1
